Unlock instant, AI-driven research and patent intelligence for your innovation.

Electro-optical device, method of driving electro-optical device, control circuit of electro-optical device, and electronic apparatus

a control circuit and electrooptical technology, applied in the direction of electric digital data processing, instruments, computing, etc., can solve the problems of insufficient illumination in the vicinity of an outline of the black-displayed area, and the generation of afterimages, so as to achieve excellent display quality

Inactive Publication Date: 2013-11-19
COLUMBIA PEAK VENTURES LLC
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution reliably reduces afterimages by selectively driving pixels to achieve high-quality displays with improved image transition clarity and reduced current imbalance.

Problems solved by technology

However, when the all white display is performed using the method of selectively driving only the black-displayed pixels of the display unit, there is a problem that elimination in the vicinity of an outline of the black-displayed area is not sufficiently performed and an afterimage may be generated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electro-optical device, method of driving electro-optical device, control circuit of electro-optical device, and electronic apparatus
  • Electro-optical device, method of driving electro-optical device, control circuit of electro-optical device, and electronic apparatus
  • Electro-optical device, method of driving electro-optical device, control circuit of electro-optical device, and electronic apparatus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0051]FIG. 1 is a functional block diagram of an electro-optical device according to a first embodiment of the invention. FIG. 2 is a diagram illustrating a circuit configuration of an electro-optical panel. FIG. 3A and FIG. 3B are diagrams illustrating an operation of an electrophoretic element.

[0052]As shown in FIG. 1, the electro-optical device 100 includes a CPU (Central Processing Unit: control unit) 102, a display unit control device 110, a storage device 111, an electro-optical panel 112, a program memory 113, a work memory 114, a VY power supply 161, a VX power supply 162, and a common power supply 163.

[0053]The CPU 102 is connected to the display unit control device 110, the program memory 113, and the work memory 114. The display unit control device 110 is connected to the storage device 111, the electro-optical panel 112, and the common power supply 163. The electro-optical panel 112 is connected to the VY power supply 161, the VX power supply 162, and the common power su...

second embodiment

[0165]Next, a second embodiment of the invention will be described with reference to FIG. 9 to FIG. 10D.

[0166]FIG. 9 is a flowchart illustrating a method of driving an electro-optical device according to the second embodiment. FIG. 10A to FIG. 10D are diagrams illustrating a form of transition of a display unit of an electro-optical panel with image data used in steps.

[0167]A hardware configuration of the electro-optical device of the embodiment is the same as the electro-optical device 100 of the first embodiment, and a driving method using the electro-optical device 100 will be described hereinafter.

[0168]The flowchart shown in FIG. 9 shows a series of flow when updating the display image of the electro-optical device 100, and includes a first elimination step S201, a second elimination step S202, and an image display step S203. FIG. 10A is a diagram illustrating a display state of the display unit 150 before display update and image data D0 used in the display. The upper parts of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An electro-optical device includes a display unit that includes a plurality of arranged pixels and a control unit that drives the display unit. When a part or the entirety of the display unit is displayed in a single gradation, the control unit performs a first elimination operation of selectively driving a first pixel group including the pixels displayed in gradations other than a first gradation to change the pixels included in the first pixel group to the first gradation, and a second elimination operation of selectively driving a second pixel group including the pixels positioned on the outline of an area formed of the first pixel group and the plurality of pixels provided adjacent to the area formed of the first pixel group and surrounding the area to change the pixels included in the second pixel group to the first gradation.

Description

BACKGROUND[0001]1. Technical Field[0002]The present invention relates to an electro-optical device, a method of driving the electro-optical device, a control circuit of the electro-optical device, and an electronic apparatus.[0003]2. Related Art[0004]An electro-optical device using a memory-property display element such as an electrophoretic element and an electronic powder-particle element has been known. In such a kind of electro-optical device, it was possible to use a driving method using a memory property of the display element. For example, in a driving method described in JP-A-2007-206267, when the entire face of a display unit is switched to white display, only black-displayed pixels in the previous image are driven to be switched to the white display to prevent an afterimage.[0005]However, when the all white display is performed using the method of selectively driving only the black-displayed pixels of the display unit, there is a problem that elimination in the vicinity of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): G09G3/36
CPCG09G3/344G09G2300/08G09G2310/061G09G2320/0257G09G2340/16
Inventor MUTO, KOTANISHIZAWA, MASATO
Owner COLUMBIA PEAK VENTURES LLC